Panasonic TH-50PZ800B Full HD Plasma TV
November 26, 2008
Panasonic is a well established name in the world market and the products manufactured by them have already gained the hearts of many. Some of the products manufactured by them are home entertainment devices, cameras and camcorders, system solutions, home appliances, audio, office products and telephone systems. One of the numerous 50″ plasma TV models released by this company is Panasonic TH-50PZ800B Plasma TV.
This plasma TV comes with a screen size of 50 inches. Number of pixels that are formed on the screen is 1,920 x 1,080. Panasonic TH-50PZ800B Plasma TV is a full HD plasma television that comes with a native contrast ratio of 30000:1 and a dynamic contrast ratio of 1000000:1. Built-in tuners that come with this TV are of analogue and digital types. This TV comes with an integrated Freeview tuner to access Free to view channels without the need of a set up box. A couple of speakers comes in-built in Panasonic TH-50PZ800B 50″ Plasma TV that supports Nicam stereo sound. The speakers of this device present a total output power of 31W. Some important features that include in this TV are; On screen display, Motion Pattern Noise Reduction, Intelligent Frame Creation, 100 Hz Double Scan, Video Noise Reduction 3D and Digital Comb Filter. Connectors included are Component video input, 4 x HDMI, RGB input and 2 x SCART.
Screen aspect ratio of 16:9 gives the user the complete widescreen viewing experience with theatre effects. The response time of 0.001ms exhibited by this TV is amazingly quick, and thus it responds to the user’s input virtually in no time. Power consumption of this TV, under operation is 526W, and 0.7W when the TV is in standby or sleep mode. About 100 channels can be set to receive different TV programmes. The viewing angle of 180 degree, allows the user to be seated in any corner of the room to watch movies and programmes clearly. Its remote control is useful when you need to operate the controls on the TV from a distance. This plasma TV comes with a table stand. The dimensions of Panasonic TH-50PZ800B HD Ready Plasma TV are 847mm (H) x 1267mm (W) x 387mm (D) with stand, and it weighs 46Kg. The colour of the enclosure appears black. Finally, this plasma TV comes with one year warranty.
LG 60PG3000 HD Ready Plasma TV
November 25, 2008
LG is a well established company that manufactures a variety of products such as LCD TV, plasma TV, mobile phones, IT products, home appliances, air conditioning products, audio and video devices. LG 60PG3000 Plasma TV is one of their products that was launched recently.
This plasma TV produces amazingly bright pictures with the help of its high resolution. 100Hz scanning technology backs it, to produce clear pictures with zero blurr or flicker in the images. It is built with Digital Comb Filter and an XD Engine Image Enhancer to make the pictures look natural.
This plasma TV is HD Ready and comes with a screen size of 60 inches. Brightness of 1500cd/m2, contrast ratio of 20000:1 and a resolution of 1366 x 768 pixels helps in producing amazing pictures. This TV is designed to respond to the user’s inputs in no time and hence the TV never exhibits sluggishness when the user switches over to other programmes. Aspect ratio of 16:9 gives the user the complete widescreen effect with theatre viewing effect. Progressive scan is another important feature that enhances the picture quality.
LG 60PG3000 HDMI Plasma TV produces SRS TruSurround XT sound effect with its speakers endowed with a total output power of 20W. Some of the special features of the audio system of this plasma TV are XD-Engine technology, Video noise reduction and DCDi(Directional Correlational Deinterlacing). Digital(DVB) and Analogue are the built in tuners of this plasma TV.
Connectivities in this model includes 1 x composite, 1 x S-Video, 2 x SCART, 1 x Component, 1 x audio line in, 3 x HDMI, 1 x RGB input and 1 x serial(rear). One important connector in this TV model is PC input. Teletext feature in this model comes with a memory of 1000 pages.
Other important functions included are Clock, automatic power on, on-screen menus, parental control, 2:2 pull-down compensation, 3:2 pull-down compensation and chapter markers. Accessories that come with this TV are remote control and power supply. The enclosure comes in black colour. LG 60PG3000 Widescreen Plasma TV comes with one year warranty.
Progressive and Interlaced Scanning
November 24, 2008
“Persistence of Vision”….. This little magic of nature has worked big wonders for the Television industry. The TV takes advantage of this attribute of the eye, to display motion pictures and make them appear as if in a continuous flow.
It is indeed a thrilling sight when Kevin Pietersen swings his bat and strikes the ball, sending it flying in the air, for a six. The whole motion picture appears like a smooth flow. In reality, the TV camera shoots this in a frame-by-frame format. When these frames are shown in quick succession, they appear like a continuous flow to the eye. You see a similar effect while looking at a rotating fan. You cannot distinctly see each blade. The rotation happening at a high speed makes it seem like a disc. That’s “persistence of vision”. Anything moving at high speed, seems continuous to the eye.
Coming to TV cameras and their frame-by-frame shooting; each of these frames just looks like a still picture. When it comes to displaying these frames, the TV scans each frame, line by line, from top to bottom, and paints it on the screen, that way. In other words, each frame is divided into several horizontal lines. These lines are drawn one by one on the screen by the electron gun in the TV. All this line-by-line drawing and frame-to-frame display, happens so fast that it appears like real movement of objects to the eye.
Frames can be scanned in 2 ways, namely – Interlaced scanning and Progressive scanning.
What is Interlaced Scanning?
Interlaced scanning is commonly used in the Cathode Ray Tube Televisions. In this type of scanning, each frame is divided into 2 Fields - the Odd Field and the Even Field. The odd lines in the frame are scanned first, and this constitutes the Odd Field. The even lines are then scanned to form the Even Field. The electron gun, fires the odd and even fields of each frame in rapid succession, to display a moving picture on the TV screen. Again the ‘Persistence of vision’ comes to play and we experience life-like moving images. In general, the odd field is displayed in a 50th of a second. The even field is then displayed for the next 50th of the second. Therefore, in every second, 50 odd + even fields are displayed. Thus, we can say that 25 frames are displayed per second. This format of displaying 25 frames or 50 fields in a second is called PAL or SECAM. There is another format too, called NTSC, which employs display of 30 frames or 60 fields per second.
The advantage of using interlaced scanning is that only half the bandwidth of the actual frame transmission is required. This is because, only the field information has to be transmitted at a time, and each field is half the frame size. But there are drawbacks too. Inspite of the quick refresh rate, sometimes one does experience flicker or judder (called artifacts), while watching interlaced pictures. This happens because of the alternate display of odd and even fields. A process called anti-aliasing is employed to blur out these artifacts. However, this happens at the cost of the clarity of the picture. Line doubling is another technique used to reduce the flicker. In this method, each line of the field is doubled when displayed.
What is Progressive Scanning?
Progressive scanning, includes the scan and display of each and every line of the frame, sequentially, from top to bottom. This scanning is made use of in LCD and plasma TVs. Since the complete frame is drawn on the screen, there is no judder or artifacts, which are visible in interlaced scanning. The picture appears clear and detailed. The clarity is much better than the anti-aliased or line doubled pictures. If an interlaced picture is stilled, you might possibly see horizontal lines or half of the frame (either odd or even field). But, a still progressive picture, appears complete. However, you require twice the bandwidth of interlaced scanning, for transmission of progressive scan images. This is because, the complete frame details need to be transmitted at once. For compatibility purposes, many of the plasma and LCD TVs do have in-built circuitry to convert interlaced video to progressive video, the process being called de-interlacing (line doubling is one of the de-interlacing methods used).
You might have probably come across terms like 1080i, 480i, 576i or 1080p and 720p. These refer to the vertical display resolution or number of scan lines. The letter ‘i’ denotes “interlaced scanning” and the letter ‘p’ notates “progressive scanning”. The 1080 indicates televisions with the highest possible resolution of this day. Great clarity and minute detail display are achieved with this.
Thus, progressive scanning and interlaced scanning have their own advantages and disadvantages. While one gives greater clarity, the other employs lesser bandwidth. However, progressive scanning definitely seems to be taking the centre stage, as LCD and plasma TVs are taking over the traditional CRTs in many households.
LG 60PC35 Plasma TV
November 23, 2008
LG 60PC35 60″ LCD TV is the latest display model released by this company. This plasma TV with a 60” screen, is designed with certain important features such as an XD Engine, 100Hz technology and a Clear Filter to improve the quality of the images produced on its widescreen. Smooth and natural images are produced at a rate of 100fps. Aspect ratio of 16:9 gives the user the widescreen effect. Brightness of 1200cd/m2 and contrast ratio of 10000:1 improves the quality of its pictures along with a mighty resolution of 1366 x 768 pixels. The viewing angle of 160 degree allows the user to watch movies and other TV programmes from any corner of the room. You can also, very well use this plasma TV as a monitor as it comes with a PC input. LG 60PC35 Widescreen LCD TV is HD Ready that is capable of displaying high definition pictures. Built-in Freeview tuner of this TV helps you to access digital TV channels.
Speakers come integrated in LG 60PC35 HDMI LCD TV that supports stereo. The total output power of the speakers is 20W. Connectivity factors of this TV are; 2 x Scart sockets, 2 x HDMI sockets, 1 x YUV socket, 1 x S-Video socket, 1 x composite socket, 1 x PC socket and a headphone socket.
Some important features such as Automatic Installation, Parental control and Sleep Timer too comes with this model. Text services in this plasma TV refer to Teletext. Accessories that comes with this TV are remote control, power supply and a stand. Dimensions of LG 60PC35 LCD TV are 887.6mm (H) X 1,242mm (W) X 370mm (D), and its weight is 39.3Kg with stand.
LG 50PG7000 HD Ready Plasma TV
November 22, 2008
LG 50PG7000 Flatscreen Plasma TV comes HD Ready with built in Bluetooth. With Bluetooth and a USB port this device, you can view photos and listen to music. The 50 inches screen size produces vivid pictures with a resolution of 1920 x 1080p. Brightness of 1,500cd/m2 and contrast ratio of 30,000:1 are two major factors, apart from its resolution factor that improve the quality of pictures. 100Hz technology reduces flickers and blurrs in the images. The display life span of this plasma TV model is 100000 hours.
The video in LG 50PG7000 HDTV Plasma TV is enhanced with the Dual XD Engine. Some important features that are included in the video segment of this TV are; Enhanced Line Doubler, Digital Comb Filter, Black Stretcher and Enhanced Noise Reduction. Various Colour Temperature controls in this plasma TV are; Cool, Medium, Warm and User.
Audio in LG 50PG7000 Plasma TV is enhanced with 2 way speakers, four in number that produces a total output power of 20W. Some important features include Exciter, Dolby digital Decoder, Surround sound system, On Screen Equalizer, Auto Volume Leveller, Clear Voice, Sound Statue Mode and Mute. Aspect ratio of 16:9 gives the user the experience of watching programmes on a widescreen with theatre effect.
Some more sharp features included in LG 50PG7000 50” Plasma TV are Electronic Programme Guide, Quick View, Parental Control, Sub Title, Child Lock, Key Lock and Teletext. Teletext is a digital service that allows the user to get updated information related to sports, weather, financial services, entertainment, and more. Teletext comes with 1000 pages memory.
The front cabinet is made of glass, while the rear cabinet is non glossy. The cabinet colour is silver with a glossy stand that can swivel up to an angle of 20 degrees. This plasma TV requires a power of 100~240V with a frequency of 50/ 60Hz. This TV consumes a maximum of 570W in operation mode, and 1W in stand by mode. This plasma TV measures 1236mm (W) x 849mm (H) x 364mm (D) in dimensions, and weighs 45.7kg including the stand.
